Furnace or kiln for burning cement, lime, and the like.



K. H. JOHANSSON. FURNACE 0R KlLN FOR BURNING CEMENT, LIME, AND THE LIKE.

APPLICATION FILED NOV. 30. 1915.

Patented Apr. 4, 1916.

YEA/TOR HAM/$50M ATTORNEY m: COLUMBIA PLANOGRAPH co. WASHINGTON, n. c.

, UNITED strarns" ra'rnn'r onnrcn,

KLAS H. JOHANSSON, or slirsao, SWEDEN.

FURNACE 0R KILN FOR BURNING CEMENT, LIME, AND THE LIKE.

Specification of Letters Patent.

Patented Apr. 4;,1916.

Application filed November 30 1915. Serial No. 64,365.

T 0 all whom it mayconcern:

Be it known that I, KLas HERMAN JoHANssoN, a subject of the King of Sweden, and residing at Safsj'o', in the Kingdom of Sweden, have invented a. new and useful Improvement in Furnaces or Kilns for Burning Cement, Lime, and the like, of which the following is a specification.

The present invention relates to certain improvements in furnaces or kilns for burning cement, lime, bauxite or the like and consists essentially in the details of construction hereinafter set forth and particularly pointed out in the claims.

The invention relates more particularly to that class of furnaces having rotating tubes or retorts, such as are employed for burning lime, cement, bauxite or the like by means of a gas firing, by means of generator gas, or gas from coking ovens or similar gas. Furnaces of this class are usually heated by means of ground coal dust and air or of a liquid fuel. Latterly the rotating retort or tube into which the material to be burnt is fed has been heated by means of generator gas. In connection with this class of furnace, burners have been employed, rigidly connected to the furnace head, so that the flame could only take effect in a certain direction in the retort and as regarded the charge therein.

According to burner is horizontally and vertically movable on the retort head so that the heating flame may be directed to different parts in the retort, and may take effect at various points of the material passing through the same.

In the accompanylng drawing one fornr of embodymg the lnvent on 1S lllustrated,

Figure 1 being a vertical section through the retort head and burner and Fig. 2 a cross sectional elevation through the burner and the upper part of the gas and air feed pipes.

a is the retort or tube, Z) the passage in the furnace head, through which the material falls from the rotating tube/1 to the cooling tube (1. Both parts a and (Z are rotated by suitable means. The material under treatment in tube a is .burnt or roasted by the flame generated at the burner c and passes along the channel I) to the cooling tube or chamber d. Generator gas is fed to the burner 0 through the pipe m, while the primary air feed the present invention thev takes place through pipe Z, the annular channel 6 and slots f in the burner housing to the burner 0. The trunnions or pipe connections 7', j on the burner housing are respectively in connection with the gas and air feed pipes Z and m by means of movable glands or the like and form the pivot of the burner for its vertical movements. The depending arms 9, g engage around the pipe extensions j, j, the burner, with its air and gas feeds being suspended thereon. The arms 9, g are attached to a plate 9 mounted to rotate on a pivot h. The pivot h is mounted on a carriage 2' by means of which the whole may be moved in a horizontal plane, so that thewhole burner may be easily taken out and replaced by another or cleaned, as the case may be. A guiding frame 7' for the front burner surface is advantageously cooled by water or air, and of spherical cross section so as to form a secure and tight connection.

A lever 79 provided with a weight 0 serves for the adjustment of the burner on its pivots to keep the flame projected into the retort in its proper or desired position. ihe adjustment of the direction of the flame according to the desired adjustment of the burner, may be effected in any desired known manner. Lateral movement of the burner is provided for by means of oil tar or water closures or seals n, n for the ends of the pipes at and Z. A swinging movement in the vertical plane is provided for, in that the tubular arms 7', 9' may rotate in their bearings 6/, g. The carriagemay be held in position on the rails by any suitable means.

I claim as my invention:

1. In a furnace, the combination of a rotary retort; a gas burner directed toward the end of the rotary retort; and ineanspiw otally supporting the burner for angular movement 1n a vertical and a horizontal.

plane and also for movement of horizontal translation toward and away from the retort.

2. In a furnace, the combinationof a retary retort; a gas burner directed toward the end of the rotary retort; and means pivotally supporting the burner for angular movement in a vertical plane and also for inc movement of horizontal translation toward and away from the retort.

3. In a furnace, the combination of a rotary retort; a gas burner directed toward the end of the rotary ret rt;

and means pivotally supporting the burner-for angular movement in a horizontal plane and also for movement of horizontal translation toward and away from the retort.

4. In a furnace, the combination of a r0- tary retort; a gas burner directed toward the end of the rotary retort; and means supporting the burner for angular movement in a vertical and a horizontal plane and also for movement of horizontal translation toward and away frcm the retort.

In a furnace, the combination of a rotary retort; a gas burner directed toward the end of the rotary retort; means pivotally supporting the burner for angular movement in a vertical and a horizontal plane and also for movement of horizontal translation toward and away from the retort; and flexible connections for fuel and air to the burner.

6. In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; and a burner directed into said opening and having a rounded discharge head to conform to said seating.

7. In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; a burner directed into said opening and having a rounded discharge head to conform to said seating; and means for adjusting said burner angularly in said seating.

In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; a burner directed into said opening and having a rounded discharge head to conform to said seating; and means for adjusting said burner axially in the seatin V 9. In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; a burner directed into said opening and having a rounded discharge head to conform to said seating; and means for angularly adjusting said burner in said seating in both vertical and horizontal planes and intermediate planes.

10. In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; a burner directed into said opening and having a Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

admitting rounded discharge head to conform to said seating; and means for adjusting said burner angularly in said seating and bodily away from the seating. V

11. In a furnace, the combination of a rotary retort; a furnace head communicating therewith and provided with a rounded seating having an opening therein; a burner directed into said rounded discharge usedto conform to said seating; and means for angularly adjusting said burner in said seating in both vertical and horizontal planes and intermediate planes and bodily away from the seating.

12. In a furnace, the combination of a retort; a furnace head having an opening opposite the retort; a gas burner directed into said opening and engaging the retort indifferent angular positions; a pair of connected and pivotally supported arms; trunnions connected to said burner and supported in the arms; and flexible feed connections for conducting air and gas to the trunnions.

13. In a furnace, the combination of a retort; a furnace head having, opposite the end of the retort, an opening provided with a concave surface a gas burner directed into said opening and provided with a ,convex surface engaging said concaved surface; a carriage; a plate pivoted to the carriage; arms supportedby the plate; trunnions on said burner and supported on said arms; pipes movably connected to the trunnio-ns; and a liquid seal at the end of each pipe.

14. In a furnace, the combination of a rotary retort; a furnace head receiving the retort and provided, opposite the end of the retort, with an opening surrounded by a concaved spherical surface; a gas burner directed toward said opening and provided with a convex surface adapted to conform.

to said concaved surface in different angular positions; a pair of trunnions on opposite sides of said burner; arms engaging and supporting said trunnions and permitting up and down angular movement to the burner; a carriage; a plate connecting and supporting said arms; pipes angularly movably connected to said trunnions and adapted to conduct fuel and air to said burner;

and liquid seals at the outer ends of said 1 es. p In testimony whereof I have afixed my signature in the presence of two witnesses KLAS J OI-IAN SSON.v Witnesses IIENRY HAsrER, ARTHUR Scnnonnnn.

Washington, D. 0.

opening. and having a 

